CN103955297B - A kind of spatial operation formula mouse - Google Patents

Abstract

A space-operated mouse relates to a mouse. The invention aims to solve the problem that the traditional mouse needs to be used with an operating carrier, and the posture of the user when operating the mouse is limited during use, which affects the health of the user. A space-operated mouse according to the present invention can be held in the hand or worn on the index finger in various ways when in use, and the posture acquisition module inside the mouse collects the displacement of the mouse, which is directly sent to the PC through data processing Among them, there is no need to use any operating carrier, the human-computer interaction is natural, and the keyboard can be controlled by gestures without restriction; and a space-operated mouse according to the present invention adopts the principle of software low-pass filtering, with accurate positioning and fast alignment speed , combining the advantages of trackball mouse and optical mouse. Using the mouse of the present invention to operate does not limit the posture of the user, thereby effectively avoiding the problem of cervical spine disease caused by long-term use.

Description

A space-operated mouse

technical field

The invention relates to a mouse.

Background technique

The mouse is a very commonly used computer input device, which can locate the cursor on the current screen, and operate the screen elements at the position where the cursor passes through the button and the wheel device. Traditional mice can be divided into mechanical mice and optical mice according to their working principles.

The mechanical mouse is mainly composed of a rolling ball, a roller and a grating signal sensor. When you drag the mouse, it drives the rolling ball to rotate, and the rolling ball drives the roller to rotate. The photoelectric pulse signal generated by the grating signal sensor installed at the end of the roller reflects the displacement of the mouse in the vertical and horizontal directions, and then passes through the computer. Program processing and switching to control the movement of the cursor arrow on the screen. But because it adopts a purely mechanical structure, the positioning accuracy is unsatisfactory, and the brushes and decoding wheels that are frequently in contact are worn out, which directly affects the service life of the mechanical mouse.

The optical mouse detects the displacement of the mouse, converts the displacement signal into an electric pulse signal, and then controls the movement of the mouse arrow on the screen through the processing and conversion of the program. The optical mouse replaces the roller ball with a photoelectric sensor. However, this type of optical mouse cannot work normally on certain color surfaces, because the optical engine realizes cursor positioning by taking images and comparing the differences, and to take images requires the sensor to capture a certain light intensity and uniform diffuse reflection of reflected light . However, most sensors can only be sensitive to some specific wavelengths of colored light, and are powerless to other wavelengths of colored light. If the surface of the mouse pad happens to be able to absorb a large amount of the colored light sensed by the sensor, resulting in insufficient intensity of the reflected colored light, the sensor cannot make effective sensing, and naturally it is impossible to calculate the specific position of the cursor. Therefore, this type of mouse requires a special pad with a striped or dotted pattern for use.

To sum up, the traditional mouse always needs to rely on operating carriers such as desktops and backing boards to realize the normal use of the mouse. However, research in the medical field has shown that using a mouse at a desk for a long time is likely to cause cervical spondylosis, and the interaction between man and machine is not natural.

Contents of the invention

The present invention aims to solve the problem that the traditional mouse needs to be used with an operating carrier, and the posture of the user when operating the mouse is restricted during use, which affects the health of the user. The present application provides a space-operated mouse.

A space-operated mouse, which includes: a trackball, a hall sensor group, a mouse attitude acquisition module, a data processing module, a casing and an elastic bottom casing;

The Hall sensor group is used to collect the magnetic field signal of the trackball, the signal output end of the Hall sensor group is connected to the signal input end of the data processing module, and the mouse attitude acquisition module is used to collect the acceleration during the mouse movement and the angular velocity during the mouse movement , the DMP signal output end of the mouse attitude acquisition module is connected to the signal input end of the data processing module;

The mouse attitude acquisition module includes: acceleration sensor and gyroscope;

The acceleration sensor is used to collect the acceleration during the mouse movement, and the gyroscope is used to collect the angular velocity during the mouse movement;

The signal output end of the acceleration sensor and the signal output end of the gyroscope are simultaneously used as the signal output end of the mouse attitude acquisition module;

A unit implemented by software is embedded in the data processing module, and the unit includes:

A data acquisition unit that collects the pulse data sent by the Hall sensor group and the DMP data sent by the mouse attitude acquisition module;

A data processing unit that uses the Kalman filter algorithm to perform fitting calculations on DMP data to obtain stable mouse attitude parameters;

Pack the stable mouse attitude parameters and pulse data and send them to the data sending unit of the PC;

The signal output end of the data sending unit is used as the signal output end of the data processing module;

A wireless data interaction between a space-operated mouse and a PC;

There are trackball holes and button holes on the surface of the casing, the trackball is embedded in the trackball hole, the left and right buttons of the mouse are embedded in the button holes, and the Hall sensor group, mouse attitude acquisition module and data processing module are all located inside the shell;

The shell is fixed on the elastic bottom shell, and the bottom of the elastic bottom shell is provided with an arc-shaped groove.

A space-operated mouse according to the present invention can be held in the hand or worn on the index finger in various ways when in use, and the posture acquisition module inside the mouse collects the displacement of the mouse, which is directly sent to the PC through data processing Among them, there is no need to use any operating carrier, the human-computer interaction is natural, and the keyboard can be controlled by gestures without restriction; and a space-operated mouse according to the present invention adopts the principle of software low-pass filtering, with accurate positioning and fast alignment speed , combining the advantages of trackball mouse and optical mouse.

Using the mouse of the present invention to operate does not limit the posture of the user, and can adopt various postures such as standing posture and sitting posture, thereby effectively avoiding the problem of cervical spine disease caused by long-term use.

Description of drawings

FIG. 1 is a schematic diagram of the principle structure of a space-operated mouse.

Fig. 2 is a schematic diagram of the external structure of a space-operated mouse.

Fig. 3 is a left view of a space-operated mouse.

detailed description

Specific embodiment one: with reference to Fig. 1, Fig. 2 and Fig. 3 specifically describe this embodiment, a kind of space operation type mouse described in this embodiment, it comprises: Trackball 1, hall sensor group 2, mouse posture acquisition module 3. Data processing module 4, casing 6 and elastic bottom casing 7;

The Hall sensor group 2 is used to collect the magnetic field signal of the trackball 1, the signal output end of the Hall sensor group 2 is connected to the signal input end of the data processing module 4, and the mouse posture acquisition module 3 is used to collect the acceleration and mouse movement during the mouse movement. Angular velocity in the motion process, the DMP signal output end of the mouse attitude acquisition module 3 is connected to the signal input end of the data processing module 4;

Mouse posture acquisition module 3 comprises: acceleration sensor 3-1 and gyroscope 3-2;

The acceleration sensor 3-1 is used to collect the acceleration during the mouse motion, and the gyroscope 3-2 is used to collect the angular velocity during the mouse motion;

The signal output end of the acceleration sensor 3-1 and the signal output end of the gyroscope 3-2 are simultaneously used as the signal output end of the mouse attitude acquisition module 3;

Embedded with software-implemented units in the data processing module 4, the units include:

Collect the pulse data sent by Hall sensor group 2 and the data acquisition unit 4-1 of the DMP data sent by mouse attitude acquisition module 3;

A data processing unit 4-2 for obtaining stable mouse attitude parameters by using the Kalman filter algorithm to perform fitting calculations on the DMP data;

Stable mouse attitude parameters and pulse data are packaged and sent to the data sending unit 4-3 of PC 5;

The signal output end of the data sending unit 4-3 is used as the signal output end of the data processing module 4;

A wireless data interaction is realized between a space-operated mouse and a PC 5;

The shell 6 surface has a trackball hole and a button hole, the trackball 1 is embedded in the trackball hole, the left and right keys of the mouse are embedded in the button hole, the Hall sensor group 2, the mouse attitude acquisition module 3 and the data The processing modules 4 are all located inside the shell 6;

The shell 6 is fixed on the elastic bottom shell 7, and the bottom of the elastic bottom shell 7 is provided with an arc-shaped groove.

In practical applications, when the angle is calculated by a single gyroscope, the gyroscope will be affected by the integration time interval, making the angle data obtained by the gyroscope unstable, so the data of the gyroscope will drift if the time is too long, so this implementation In the method, the acceleration sensor is used to collect the attitude of the mouse at the same time, and the acceleration sensor and the gyroscope jointly determine the angle change of the mouse. The specific implementation process is as follows:

The gyroscope collects the angular velocity ω during the mouse movement, then the initial angle θ ₁ of the mouse can be expressed as:

θ ₁ (t) = ∫ωdt

The acceleration sensor collects the acceleration value g ₁ during the movement of the mouse, and the tilt angle θ ₂ of the mouse can be obtained according to the acceleration value g ₁ ,

Among them, g represents the acceleration due to gravity. The precise movement angle θ of the mouse can be obtained by using the initial angle θ ₁ of the mouse and the tilt angle θ ₂ of the mouse,

θ＝a|θ ₁ +b|θ ₂

Among them, a is the weight coefficient of the gyroscope, and the value range is between 0.01 and 0.1; b is the weight coefficient of the acceleration sensor, and the value range is between 0.9 and 0.99 (within 60s, if the previous The angular velocity value is 12 degrees smaller than the previous value of the last time, then the maximum value of b is 0.99, and the minimum value is 0.9), and a+b=1 is satisfied;

The precise mouse movement angle θ ranges from -180 degrees to 180 degrees, and the precise mouse movement angle θ is rotated by 180 degrees, and the final mouse movement angle obtained at this time ranges from 0 degrees to 360 degrees. Finally, the above-mentioned final mouse movement angles are packed and sent to the CPU of the PC.

When in use, insert the finger into the groove of the elastic bottom shell 7, the elastic bottom shell 7 clamps the finger by virtue of its own elasticity, and then collects the gesture of the mouse through the gesture acquisition module, and at the same time other fingers control the trackball for further precise positioning. Together to realize the operation of the mouse, the use of the mouse at any position in the space can be realized without any mouse carrier at all.

In the space-operated mouse described in the present invention, the shapes of the shell 6 and the elastic bottom shell 7 are not limited to the shapes described in Embodiment 1 of the present invention, as long as the space-operated mouse can be realized or worn on fingers. .

Specific embodiment 2: This embodiment is a further description of the space-operated mouse described in the specific embodiment 1. In this embodiment, the data transmission module and the PC are used between the space-operated mouse and the PC. Data receiving module realizes wireless signal transmission, and the signal input end of data sending module connects the signal output end of data processing module 4, and data receiving module is positioned at PC 5, and the signal output end of data receiving module connects the mouse signal of CPU in PC 5 input.

The data receiving module encodes the signal sent by the data processing module 4, and then sends it to the data receiving module in the PC 5 by wireless transmission, and the data receiving module decodes the received encoded signal to obtain the mouse posture change data , and then send the mouse posture change data to the CPU in the PC 5 .

Embodiment 3: This embodiment is a further description of the space-operated mouse described in Embodiment 2. In this embodiment, both the data sending module and the data receiving module are NRF24L01 chips.

Embodiment 4: This embodiment is a further description of the space-operated mouse described in Embodiment 3. In this embodiment, the data processing module 4 is a Mega32U4 chip.

Specific embodiment five: This embodiment is a further description of a kind of space operation type mouse described in specific embodiment four. In this embodiment, the mouse attitude acquisition module 3 is an MP6050 chip, which is integrated with a gyroscope and an acceleration sensor.

Embodiment 6: This embodiment further describes the space-operated mouse described in Embodiment 5. In this embodiment, the Hall sensor group 2 includes six Hall sensors.

The Hall sensor group 2 will generate pulses for the change of the trackball through the six Hall sensors, and send them to the data processing module 4 as six-axis fitting data to obtain the direction change. The design of the six Hall sensors can control up to six direction, which simulates the position change of the mouse well.

Embodiment 7: This embodiment is a further description of the space-operated mouse described in Embodiment 6. In this embodiment, the material of the elastic bottom shell 7 is silica gel.

In this embodiment, the material of the elastic bottom shell 7 is silica gel, which has high elasticity and can ensure that fingers of different sizes can be used for the mouse of the present invention, and the silicone material is soft, so even if it is worn for a long time, it will not produce discomfort.

Claims (7)

1. a kind of spatial operation formula mouse, it is characterised in that it includes：Trace ball (1), Hall sensor group (2), mouse attitude Acquisition module (3), data processing module (4), shell (6) and elastic drain pan (7)；

For the magnetic field signal of acquisition trajectories ball (1), the signal output part of Hall sensor group (2) connects Hall sensor group (2) The signal input part of data processing module (4) is connect, mouse Posture acquisition module (3) is for gathering the acceleration during mouse movement Angular speed during degree and mouse movement, the DMP signal output parts connection data processing module of mouse Posture acquisition module (3) (4) signal input part；

Mouse Posture acquisition module (3) includes：Acceleration transducer (3-1) and gyroscope (3-2)；

Acceleration transducer (3-1) is used to gather the acceleration during mouse movement, and gyroscope (3-2) is used to gather mouse fortune Angular speed during dynamic；

The signal output part of acceleration transducer (3-1) and the signal output part of gyroscope (3-2) are adopted as mouse attitude simultaneously The signal output part of collection module (3)；

The unit of software realization is embedded with the data processing module (4), the unit includes：

The data of the DMP data that the pulse data and mouse Posture acquisition module (3) that collection Hall sensor group (2) sends send Collecting unit (4-1)；

DMP data are fitted with calculating using Kalman filtering algorithm, the data processing of the mouse attitude parameter of stabilization is obtained Unit (4-2)；

The mouse attitude parameter and pulse data of stabilization are packed and sent to the data transmission unit of PC (5) (4-3)；

The signal output part of the data transmission unit (4-3) as data processing module (4) signal output part；

Realize that wireless data is interacted between a kind of spatial operation formula mouse and PC (5)；

Shell (6) surface is provided with track ball and button hole, and the trace ball (1) is embedded in the track ball, the left and right of mouse Key is embedded in button hole, and the Hall sensor group (2), mouse Posture acquisition module (3) and data processing module (4) are respectively positioned on Shell (6) is internal；

Shell (6) is fixed on elastic drain pan (7), and the bottom of elastic drain pan (7) is provided with the curved groove in section.

2. a kind of a kind of spatial operation formula mouse according to claim 1, it is characterised in that spatial operation formula mouse Transmission of wireless signals is realized using data transmission blocks and data reception module between PC, the signal of data transmission blocks is defeated Enter the signal output part at end connection data processing module (4), data reception module is located in PC (5), data reception module Signal output part connects the mouse signal input of CPU in PC (5).

3. a kind of spatial operation formula mouse according to claim 2, it is characterised in that the data transmission blocks and data Receiver module is NRF24L01 chips.

4. a kind of spatial operation formula mouse according to claim 3, it is characterised in that data processing module (4) is Mega32U4 chips.

5. a kind of spatial operation formula mouse according to claim 4, it is characterised in that mouse Posture acquisition module (3) is MP6050 chips, are integrated with gyroscope and acceleration transducer on the chip.

6. a kind of spatial operation formula mouse according to claim 5, it is characterised in that Hall sensor group (2) is including six Individual Hall sensor.

7. a kind of spatial operation formula mouse according to claim 6, it is characterised in that the material of elastic drain pan (7) is silicon Glue.